188-25 Exhibit A_GPI_WO Agreement Contract.pdf

Exhibit A Page 21 of 66 TA-2023 Washington Street Corridor Improvement Project Phase 2 Township of West Orange The location of underground utilities will be provided by utility companies on base map markups as part of activity 3055 described below. GPR, electro-magnetic surveying and test pits or any other means for locating underground utilities is not included in this PE scope. A limited Subsurface Utility Engineering (SUE) program is included in the Final Design (FD) scope and fee proposal. Please refer to MFS’s Scope of Services and Estimate which is attached for more information. Prepare Base Maps (3025): GP! will manage and coordinate with our subconsultant, MFS, who will prepare the base maps which will depict in detail the required existing topography. The base maps will also include the baseline information and existing right-of-way as determined by field evidence and deed mosaic. This data is to be provided in accordance with Article 51 Standards and Procedures. GPI to perform a QA of MFS’s work to check that survey is in accordance with project scope and needs. Please refer to MFS’s Scope of Services and Estimate which is attached for more information. Prepare Horizontal and Vertical Geometry (3030): GP! will layout and calculate the horizontal and vertical geometry of the proposed sidewalk and streetscape improvements. The proposed geometry will be tied to the project baseline with proposed work and the project footprint defined over the base mapping to produce an accurate depiction of the project impacts. The proposed improvements will be designed to be ADA compliant where ramp grades will be 8% maximum, a minimum five (5) foot square passing space will be provided at intervals no greater than 200 feet, and cross slopes will not exceed 2%. Where sidewalks and curb ramps cannot be designed to ADA standards, variations from ADA compliance will be documented with a “Technically Infeasible Form” (TIF). Driveway grades will be corrected where the walkway portion of the driveway aprons do not meet ADA requirements and exceed 2% cross slope. We will develop critical cross-sections to identify slope impacts at locations that may result in right-of-way, utility, or environmental impacts. Streetscape improvements will extend from the curb line and, to the extent feasible, will remain within the existing right-of-way. Potential complications with

way, utility, or environmental impacts. Streetscape improvements will extend from the curb line and, to the extent feasible, will remain within the existing right-of-way. Potential complications with curb extensions include: o Conflicts with existing utilities Relocation and modifications with existing drainage structures and conveyance piping Altering top and bottom of curb elevations and sidewalk cross slope Altered drainage paths Substandard turning movements for larger design vehicles ooo0o GP! will develop no more than three (3) typical sections to depict the proposed streetscape improvements showing and dimensioning roadside details such as curb, landscaping areas, sidewalk, utility poles, adjacent buildings, cut and fill slopes, and right-of-way line. Prepare Utility Base Plans (3035): GP! will prepare utility base plans from the field survey data and topographic mapping to show existing surface utility facilities. Send Utility Verification Request Letter (3045): GP! will establish utility contacts and submit the verification request letter and a set of the utility base plans to each utility company to identify their existing facilities on the utility base plans. We anticipate that this letter will be sent to no more than eight (8) utility companies. Update Base Plans and Identify Conflicts (3055): GP! will coordinate with the affected utility companies and incorporate the collective utility owner comments onto the base maps. We will review the existing utilities to -GPI